The RetroClinic External Dual Removable CF Hard Drive Kit is a fully self contained Dual Solid State Hard Drive, that allows you to fit 2 Compact Flash cards simultaneously, to give your BBC Computer up to 2 GB of storage space. Compact Flash cards give the advantage of smaller lighter unit, no noise, no spin up time, and faster access speeds, with greater reliability than their spinning platter counterpart. The drive itself is around the same size as an external 2.5" USB style drive you would use on your PC, measuring only 93mm wide, by 155mm deep and 35mm high, and is in the same "BBC Cream" colour casing.
Further details, including how to buy, are available from RetroClinic.com. The External Dual Removable CF Hard Drive Kit may no longer be available from RetroClinic as it has been removed from the website.
RetroClinic External Dual Removable CF Hard Drive Kit box
RetroClinic External Dual Removable CF Hard Drive Kit contents
From the left, the Kit contains:
RetroClinic External Dual Removable CF Hard Drive Kit unpacked
This picture shows the CF drive and ribbon cable which connects the the 1MHz bus, the power supply and the ROMs
RetroClinic External Dual Removeable CF Hard Drive installed in a Master
The CF drive has a 16Mbyte CF card in it and is attached to the Masters 1 MHz bus. On the right the RFS HDINIT CF_FORM ROM is installed in a Care Electronics Master ROM cartridge. I keep it in a cartridge because it is only needed when a new CF card is formatted. On the screen you can see the contents of the CF drive (copied from the 5¼" floppy disc and the output from *FREE showing 7+ MB free space. Because the interface is 8 bits wide it can only use half the capacity of the compact flash card.
Futher details can be found on the RetroClinic web site under BBC Model B, B+ and Master 128 - External Dual Removeable Compact Flash Hard Drive Kit